Apparatus for manufacturing horseshoes.



C. E. PEDERSEN.

APPARATUS FOR MANUFACTURING HORSESHOES.

APPLICATION FILED APR.29.1902.

as, WASMNu'fON, n 0

ANDREW a GRAHAM co, PHOTO-LITNOGRAPHE G. E. PEDERSEN.

APPARATUS FOR MANUPAOTURING- HGRSEJHOES.

:Lmmmimmmmmm ANDREW B swam 0o PWJYD-UTNUGRAPNEFS.WASHINGTON Dvc.

G. E. PBDERSEN. APPARATUS FOR MANUFACTURING HORSESHOES. APPLICATION FILED APR. 29. 1902 Patented Apr. 5, 1910.

6SHEETSSHEET 3.

6 SHEETS-SEEET 4.

1 mi? JUEMIAUNU v Patented A101". 5, 1910:

G. E. PEDERSEN.

APPARATUS FOR MANUFACTURING HORSESHOES.

APPLICATION FILED APR. 29. 1902.

0. E. PEDERSEN. APPARATUS FOR MANUFACTURING HOBSESHOES.

A APPLICATION FILED APR 29. 1902.

953 3599 Patented Apr. 5, 1910.

6 SHEETS-SHEET 5.

; fig, 8a

W it 26366.5" ax 2%? Z /ZM ANDREA; av mmwm cn. mom'uwocmwws wgsmnswn, as

0. E. PEDERSEN. APPARATUS FOR MANUFACTURING HORSESHOES.

APPLIOATION TILED APR. 29. 1902.

Patented Apr. 5, 1910.

6 SHEETS-SHEET 6- ornc APPARATUS FOR ML'A'NUFACTURING HORSESI-IOES.

Specification of Letters Patent,

Patented Apr. 5, 1910.

Application filed April 29, 1902. Serial No. 105,222.

To all whom it may concern:

Be it known that I, CARL Enn. Pnnnnsnn, a. subject: at the King of Norway and Sweden, residing at 'lonsberg, Norway,have invented certain new and :etul improvements in ipparatitis for Iiianut'acturing Horseshoes; and I do hereby declare the following to be a. full, clear, and exact description of the invention, such will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The present invention relates to a process for manufacturing horse-shoes and lies in a machine for carrying out said process of manufacture.

In my improved process I make use of a blank in the form of a rod of iron o't rectangular cross section. This blank heated before entering the machine and then without any further heating passed through the whole machine till it has obtained its finished form.

In the annexed drawing: Figures 1A5 show the blank in its five different stages from the rectangular rod or bar, Fig. 1, to the finished horse-shoe, Fig. 5. Fig. 5 is a section through Fig. 5. F i 's. 6, '7 and 8 show respectively an elevation, plan view and a transverse-section of a preferred constructional form of the machine; Figs. (3 and 7' show in front and side elevation certain details; Fig. 8 is a view similar to Fig. 8, but showing the parts in a different position; Figs. 9, 9 and 10 are details relating to the rolling-device, Figs. 11, 12 and 13 details relating to the bending-device and Fig. l t shows a couplingmechanism for the rolling-device.

In carrying out my improved process I make use of a rolling-device, a bending-device and a steam-hammer or its equivalent.

By means of the rolling-device the straight blank, Fig. 1, is transformed into the form shown in Fig. 2, that is to say it is lengthened and provided with too and heel calks. In this form the blank is pushed into the bending-apparatus, which first imparts to it the form shown in Fig. 3, and then the form shown in Fig. l. During these operations the blank has been moved under the hammer and a blow of the latter gives the shoe the finished form with an inclined flat for the hoof, countersunk grooves and holes for the nails and the heads of nails. By this simple operation a perfect form of the horseshoe is obtained and, as the bonding is done in one operation with the transfer of the blank to the steam hammer, the entire operation is so short and continuous, that the shoe receives the blow of the hammer when it is still quite white hot. v

The general arrangement of the machine is clearly shown in plan in Fig.7. The blank W is, by means of a feeding apparatus consisting of rolls driven in a suitable manner, as shown in Figs. 6 and '7, carried into the rolling-apparatus B; from this it comes out on the other side and is here carried through a channel D to the bending-apparatus E. This latter apparatus acts in such a manner that while bending the shoe to the form shown in Fig. 3, it moves it to the position shown in dotted lines in Fig. 7, where it rests beneath the steam -hammer. Be'lore the hammer F gives the shoe its blow, the rear ends of the shoe are bent inwardly by means of a special device arranged at the foot or the hammer.

A ditficulty in carrying out the process lies in the tendency of the blank to twist during the bending. As the form of the blank, when coming into the bending-apparatus is very important as affecting the manner in which the bending operation will be performed, it has appeared expedient to employ a smoothing device C, consisting of a drophammer, which gives the blank a blow, when it comes out of the rolling-device into the channel D. By means of this hammer the blank, which may have received a somewhat twisted form during the rolling operation is smoothed horizontally so that the bendingapparatus will be able to act efiiciently.

The constructive arrangement of the machine, shown in the drawing, and the manner of operation of the different working-tools will be hereafter more fully described.

The arrangement of the rolling-apparatus appears from Figs. 9 and 10. The lower roll 1 is smooth, the upper roll 2 is provided with a groove 3 and in this groove the mold atis disposed. This mold is provided with recesses 5 and 6, OOl'I'BSPOIlCliIlg' to the toe and heel calks. The blank is fed between the rolls so that its smallest side will be hori zontal and the dimension of this side correspondsto the desired thickness of the toe and heel calks.

In order to loosen the blank from the mold, there are arranged three pushers or ejectors T in the roll, which are movable lt dially in a bore in the bottom of recesses 5, and 6. The ejectors are guided in a guide 8 and are held in their retired position by means of a lever 9 which is actuated by a spring 10 and is rotatable on a pivot 11 and carries at its free extremity a roller 12. This roller comes. during the rotation of the rolling-apparatus in contact with a cam 1.3 w iich is secured t the frame and forces the roller inwardly. The ejectors are thereby moved outvv'ardly and force the blank out of the mold. In front of the roll. at the beginning of the chute D, a piece with a rib l t cured at one side of the same, so t its point catches over the edge of the b 2 l to ces it downwardly. Owing to f this rib the blank is now during rotation of the roller restored it form before 1t 18 a reciprocating or osciltti Q, n n and. after each rolling operation they learn to their startmg-position. in the r lling operation the motion of the o t wnieh cog-wheel engages a sim i- 19. on the shaf 18 of the lower 1 e shaft is driven from the i of the machine by means of b 's 22.. The wheel 21 is loosely pla shaft 20. and rotates vith it only wh coupling is effected. The arrangein of this coupling is shown in Fig. ll. The eouplingsleeve 25. which is movable a :iallv on the shaft, is actuated for engagei The backward motion of the rollers is ans of a lever or c 'ank 3? (see n e to the shaft 2 of "he upper This lever is by means of a rod 36 connected with a lever 35. which has its pivot at on the frame and whose lower cnd is so disposed as to be hit by a cam Bl on the shaft 20. By the rotation of this of the t wirl cause a partial rotation i The feedm device for the blank issing from the prolonged end of t ie lever 37 down to a sliding-block +0 in guide 39. to which the feeding-hook ii is secured. The guide 39 is mounted above the machine bed parallel to the channel D and the hook i1 is placed on a swinging lever li whose other end is acted upon by a spring as shown. This feeding hook ll feeds the blank from the position shown in Fig. (3 to the bending appa 'atus on the bed 80.

The feeding of the blank from the rollers to the point where the hook ell catches behind it. is performed by means of a pusher and a lever and rod system illustrated in Fig. '7 and Fig. T". l2 is the pusher in the form of a sliding piece, sliding in the guide l2, placed on the bed of the machine parallel with the channel D. it is a swinging lever having its pivot at on the machine bed; this lever is by means of the rod t connected with the pusher l2. and by m ans of the rod with the lever H3, which is pivoted at lb. The other end of this lever has a slot te into which a pin l'i' on a vertical lever lT projects. As will be seen from Fig. I. which is a rear view of this part of the m; chine. the lever lT is pivoted at l7" and is held against the disk or cani wheel t8 on the shaft by a spring 4:8. By the rotation of this shaft the lever l7 will be put in a reciprocating motion, which motion. in the manner above described, is transmitted to the pusher l2. The pusher 42 catches behind the front calk while the feeding hook ll -atches behind the rear end of the blank as shovn.

I will now describe the machine for operating the smoothing hammer C, reference being had to Figs. 6. 6 and 7 Fig. (3 being a partial cross-section of the machine taken between the smoothing hammer and the stean1-ha1nmer and looking toward the latter.

The smoothing hammer is hung on the a lever 53 and is vertically guided by means of a standard Bl which is embraced by suitable guides 5st on the back of the hammer body. This hammer and accessories are not shown in the plan view, Fig. 4'. it i held in its upper position (shown in Figs. (3 and T) by means of a lever 50, pivoted at to the standard and having its upper end placed underneath a lug 51 on the back of the hammer. The other end of the lever has a detent 52. which projects into the path of the pusher 4-2. so that when this pusher reaches the end of its path it hits the detent and tips the lever so the hammer free to drop. The raising of the hammer to its lifted position is performed by the following means (see Fig. 6) On the lever a roller 53 is mounted near the pivot of the lever. Below this roller a lever. having two arms 57 and 58, is pivoted at 58 to the frame of the machine. The arm 58 extends down wardly and rests against a cam wheel 59 on the shaft 24-. The top of the arm 57 is formed with an offset 57 which has a flat upper face with which the roller .33 may come in rolling contact. When the hamme' C is in its lower position and the arm 5?" is swung up *ard by the action of the cam on he arm 58 the offset 54' will lift the roller with the lever 53 and thereby raise the ham mer, whereupon the arm 50 will act as a latch catching underniaith the lug 51.

Immediately after the btank has received the blow of the smoothirig-hammer. the latter is lifted up and the blank is pushed forward to the bending-apparatus where it. comes to rest between vertical rollers (50 on the one side and the mold til, on the other.

The manner of operation and the construction of this part of the machine appears from Figs. '1' and 8 and particularly from Figs. 11. 12 and .13. The most. essential part of the bending-apparatns is the mold (31, which consists of a block or arm mounted on pivots carried by lugs 62 on a firmly constrncted slide 80 which slide also serves. at one extreme of its movement, as an anvil or support beneath the hammer. The mold proper has on its front a round face (it. corresponding to the inner-side of the shoe, and

flanges 67 are arranged above this face. The blank rests underneath these flai'iges, and when the slide is carried forward the rollers force the ends of the blank inwardly.

In order that the pressure on the mold shall not make it turn upward during the bending operation, its pivots are disposed in a plane above the mold-face. whereby the mold will have a tendency to move down ward when exposed to a horizontal pressure. The slide is moved by means of a cam 81 on the shaft 24. This cam rests against a roller 82 on the lever 83, which projects from the shaft- 84 and is connected with its up per end to the slide 80. On the shaft 8% an arm 85 is disposed with counterweights 80, which carries'the slide back to the st; rtingposition.

When the 1nold-slide has come forward to its end-position the blank and the mold 0o cupy a position innnediately beneath the steam hammer, as shown in dotted lines in Fig. 7, and now the lateral dies 90. come into action. These are arranged in guides in the foot of the steam-hammer and are moved by means of inclined pieces 89. which are secured to the slides 88 and project into grooves in the under-side of the dies 90. The slides 88 move in grooves in the frame and are at the other end connected loosely to the upper end of the arms 93. which are secured on shaft 9% and carry a roller 92. against which the cam 01 rests. The shaft 94- has an arm 95 with coimterwcight 00, which carries the slides 88 with the dies 00 back to the starting-position.

Before the hammer drops the mold (31 must be lifted up and to one side. so that the shoe will rest freely on the slide 80, forming the anvil. For this purpose it is arranged as a swinging arm. For lifting it from position shown in Fig. 8 to the position sho n in Fig. 8 a cam 71, is arranged on shaft 2st. Against this cam rests the lower end of a lever 73. which is pivoted at; T2. The upper ei'ld of this lever is connected to a rod 70, which has a slot into which a pin projects, said pin being mounted on an arm 1'57. which latter is connected to the mold. l' l'ien the mold is in its advanced position (under the hammer) the pin will be. at the end of the slot (50 and when the cam moves the lever T3. the latter will thereby swing the mold upwardly. l? l en the mold re turns it is struck down 'ard to its workingposition by means of the pin contacting with the other end of the slot (30. On the mold slide there is an elevated face 63 underneath the mold, said face having inclined sides. which produce an incline on that side of the shoe which lies next. to the hoof.

The disengaging mechanism of the steamhammer (see Figs. 8 and 8 consists of a bell crank 101. which is connected with the. valve-rod and is pivotally mounted on the frame its lower end projecting in front of a lug 103 on the horizontal sliding rod 102. This rod. which is drawn inwardly by a spring 10 1 at its other end connected with an arm 105. which is pivoted at its lower end and carries a lug 106. which rests against the above mentioned lever 73, which effects the lifting of the mold 6 1'. \lhen this lifting takes place the arm 105 and rod 102 are also carried with it so that the valve rod is thereby moved.

Claims.

1. in a machine for manufacturing horseshoes, the combination, with blank forming rolls arranged to form separate blanks, means to receive and st aighten the blanks as they come from the rolls, means to bend the blank into the form of a shoe, and auton'iatically acting means to feed the blank from the straightening device to the bending device. all in one continuous operation.

2. In a machine for manufacturing horsei shoes the combination. with rolls provided in their opposing faces with molds to form individual blanks with toe and heel calks. means to straighten the blanks as they emerge from the rolls. means acting parallel to the axes of the rolls to bend the blank into the form of a shoe. means for creasing and punching the shoe. and means to autoli'latically feed the blank progressively from the straightening device to the bending device, to the creasing anl punching device.

3. In a machine for manufacturing horseshoes the combination with a rolling appa ratns for lengthening and forming the blank, a bending apparatus, and a connect- 1 ing channel, of a hammer disposed above the channel and operating to straighten the blank after the rolling operation, and means for automatically bringing the blank to rest in the proper position and operating said blank, and ejectors radially movable in the roll and serving to force the blank out of the mold progressively as the roll rotates, of a feed channel leading from the rolls, a rib secured on the frame and serving as a guide to conduct the blank into the channel and to straighten the same, means for conveying 1 the blank along the channel, a drop hammer operating at right angles to the axes of the rolls to smooth the blank. a slide movable transversely in relation to the said channel, a roller at each side of the slide, a mold carried by the slide, said mold being mounted on an arm pivoted so as to be capable of swinging in a vertical plane and adapted to withstand a force applied in a horizontal plane, dies arranged laterally of the mold when in its horizontal position, said dies being movable in a horizontal plane transversely of the movement of the slide, means for moving the slide with the mold against the blank so as to press the same between the rollers thus serving to bend the blank around the mold, means for pressing the dies against the rear parts of the shoe and causing the same to conform to the shape of the mold, means for automatically swinging the arm with the mold up from the plane of the slide, and a hammer arranged above the slide and provided on its face with means for creasing and punching the shoe.

In witness whereof I have hereunto set my hand in presence of two witnesses.

CARL EMIL PEDERSEN.

lVitnesses ALFRED J. BRYN, Jon. VAALER. 

